A lot of times I'm just brain-dead in the morning. I don't feel it, and I'll start looking at art to get inspired. It's pretty easy to find something that I really like and that gets me excited. Then sometimes I'll just jump into a remix like this, duplicating layers, overlaying, transforming, re-crop, until I come up with something bit different. It gets me thinking.
I don't expect to come up with anything ground breaking, and I wouldn't take credit for the new image. It's just enough to warm up, get excited, explore, and get the juices flowing.